EP1878873A3 - Turbine engine alloys and crystalline orientations - Google Patents

Turbine engine alloys and crystalline orientations Download PDF

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Publication number
EP1878873A3
EP1878873A3 EP07252722A EP07252722A EP1878873A3 EP 1878873 A3 EP1878873 A3 EP 1878873A3 EP 07252722 A EP07252722 A EP 07252722A EP 07252722 A EP07252722 A EP 07252722A EP 1878873 A3 EP1878873 A3 EP 1878873A3
Authority
EP
European Patent Office
Prior art keywords
component
turbine engine
effect
operational stress
crystalline orientations
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07252722A
Other languages
German (de)
French (fr)
Other versions
EP1878873A2 (en
EP1878873B1 (en
Inventor
Dilip M. Shah
Joseph G. Hillebrand
Daniel E. Kane
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of EP1878873A2 publication Critical patent/EP1878873A2/en
Publication of EP1878873A3 publication Critical patent/EP1878873A3/en
Application granted granted Critical
Publication of EP1878873B1 publication Critical patent/EP1878873B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/005—Sealing means between non relatively rotating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/005—Sealing means between non relatively rotating elements
    • F01D11/006—Sealing the gap between rotor blades or blades and rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/02—Arrangement of sensing elements
    • F01D17/04—Arrangement of sensing elements responsive to load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/04—Antivibration arrangements
    • F01D25/06—Antivibration arrangements for preventing blade vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/16—Form or construction for counteracting blade vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/24—Blade-to-blade connections, e.g. for damping vibrations using wire or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/05—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles
    • F02C7/052—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles with dust-separation devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0806—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing characterised by material or surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0887—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by elastic deformation of the packing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/24—Methods or devices for transmitting, conducting or directing sound for conducting sound through solid bodies, e.g. wires
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0466—Nickel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/11—Iron
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/607—Monocrystallinity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making

Abstract

A method is provided for engineering a single crystal cast gas turbine engine first component for cooperating with a second component. An at least local first operational stress on the first component is determined. The first operational stress has a first direction. A crystal orientation within the component or a physical configuration of the component is selected so that the first operational stress produces a desired engagement of the first component with the second component associated with either a negative Poisson's effect or high Poisson's effect in a second direction. Single crystal or highly textured iron- and nickel-base alloys enable one to use such effect in high temperature and/or corrosive environments.
EP07252722.9A 2006-07-13 2007-07-06 Method for engineering a single crystal cast gas turbine engine metallic seal and apparatus comprising a corresponding seal Active EP1878873B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/486,743 US8016549B2 (en) 2006-07-13 2006-07-13 Turbine engine alloys and crystalline orientations

Publications (3)

Publication Number Publication Date
EP1878873A2 EP1878873A2 (en) 2008-01-16
EP1878873A3 true EP1878873A3 (en) 2011-08-10
EP1878873B1 EP1878873B1 (en) 2016-08-31

Family

ID=38508702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07252722.9A Active EP1878873B1 (en) 2006-07-13 2007-07-06 Method for engineering a single crystal cast gas turbine engine metallic seal and apparatus comprising a corresponding seal

Country Status (3)

Country Link
US (1) US8016549B2 (en)
EP (1) EP1878873B1 (en)
JP (1) JP4621711B2 (en)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5308679B2 (en) * 2008-01-22 2013-10-09 東京エレクトロン株式会社 Seal mechanism, seal groove, seal member, and substrate processing apparatus
US20090191050A1 (en) * 2008-01-24 2009-07-30 Siemens Power Generation, Inc. Sealing band having bendable tang with anti-rotation in a turbine and associated methods
FR2955142B1 (en) * 2010-01-13 2013-08-23 Snecma PIONE VIBRATION SHOCK ABSORBER BETWEEN ADJACENT AUB THREADS IN COMPOSITE MATERIAL OF A TURBOMACHINE MOBILE WHEEL.
EP2407641A1 (en) 2010-07-13 2012-01-18 Siemens Aktiengesellschaft Sealing element for sealing a gap and sealing arrangement
US8662849B2 (en) * 2011-02-14 2014-03-04 General Electric Company Component of a turbine bucket platform
US9534500B2 (en) * 2011-04-27 2017-01-03 Pratt & Whitney Canada Corp. Seal arrangement for segmented gas turbine engine components
DE102011108957B4 (en) 2011-07-29 2013-07-04 Mtu Aero Engines Gmbh A method for producing, repairing and / or replacing a housing, in particular an engine housing, and a corresponding housing
DE102011084125A1 (en) * 2011-10-07 2013-04-11 Mtu Aero Engines Gmbh Blade segment for turbomachine e.g. gas turbine for aircraft engine, has upper shroud which interconnects blades to each other, and lower shroud is divided into several portions which are firmly connected to the blades
US9551049B2 (en) 2012-08-28 2017-01-24 United Technologies Corporation High elastic modulus shafts and method of manufacture
US9541148B1 (en) 2012-08-29 2017-01-10 The United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration Process for forming a high temperature single crystal canted spring
US10167738B2 (en) 2013-03-14 2019-01-01 United Technologies Corporation Compressor case snap assembly
CN105555517B (en) * 2013-03-15 2018-09-21 哈佛大学校长及研究员协会 Low porosity auxetic sheet material
US9709274B2 (en) * 2013-03-15 2017-07-18 Rolls-Royce Plc Auxetic structure with stress-relief features
DE102013220584A1 (en) * 2013-10-11 2015-04-16 Robert Bosch Gmbh control valve
US9358488B2 (en) 2013-11-15 2016-06-07 Bha Altair, Llc Gas turbine filtration system with inlet filter orientation assembly
US9416675B2 (en) * 2014-01-27 2016-08-16 General Electric Company Sealing device for providing a seal in a turbomachine
US9719363B2 (en) * 2014-06-06 2017-08-01 United Technologies Corporation Segmented rim seal spacer for a gas turbine engine
RU2706056C2 (en) 2015-01-09 2019-11-13 Президент Энд Феллоус Оф Харвард Колледж Structure with zero porosity and negative coefficient of poisson and adjustment of structure with negative coefficient of poisson for specific sections
US10603866B2 (en) 2015-01-09 2020-03-31 President And Fellows Of Harvard College Hybrid dimple-and-void auxetic structures with engineered patterns for customized NPR behavior
EP3245059B1 (en) 2015-01-09 2020-06-17 President and Fellows of Harvard College Negative poisson's ratio waffle structures
US9970308B2 (en) * 2015-01-26 2018-05-15 United Technologies Corporation Feather seal
US10830357B2 (en) * 2015-04-24 2020-11-10 Raytheon Technologies Corporation Single crystal grain structure seals and method of forming
US9810087B2 (en) 2015-06-24 2017-11-07 United Technologies Corporation Reversible blade rotor seal with protrusions
US10094232B2 (en) * 2015-08-13 2018-10-09 United Technologies Corporation Self crystalline orientation for increased compliance
US10487677B2 (en) * 2015-11-10 2019-11-26 General Electric Company Turbine component having a seal slot and additive manufacturing process for making same
WO2017095926A1 (en) 2015-12-01 2017-06-08 Saint-Gobain Performance Plastics Corporation Annular seals
US10012099B2 (en) 2016-01-22 2018-07-03 United Technologies Corporation Thin seal for an engine
GB201603554D0 (en) 2016-03-01 2016-04-13 Rolls Royce Plc An intercomponent seal for a gas turbine engine
DE102016206022A1 (en) * 2016-04-12 2017-10-12 Siemens Aktiengesellschaft Seal for turbomachinery
US10352183B2 (en) * 2016-04-25 2019-07-16 United Technologies Corporation High temperature seal and method
US10487943B2 (en) * 2016-07-12 2019-11-26 United Technologies Corporation Multi-ply seal ring
US11181002B2 (en) * 2016-09-29 2021-11-23 General Electric Company Turbine systems with sealing components
FR3065986B1 (en) 2017-05-02 2021-07-09 Safran Aircraft Engines ASSEMBLY FOR GAS TURBINE, ASSOCIATED GAS TURBINE
US11208907B2 (en) * 2017-07-13 2021-12-28 Raytheon Technologies Corporation Seals and methods of making seals
FR3071272B1 (en) * 2017-09-21 2019-09-20 Safran SUPERALLY TURBINE PIECE COMPRISING RHENIUM AND / OR RUTHENIUM AND PROCESS FOR PRODUCING THE SAME
US10760686B2 (en) * 2017-10-11 2020-09-01 Raytheon Technologies Corporation Wear resistant piston seal
US11220919B2 (en) 2019-07-18 2022-01-11 Pratt & Whtney Canada Corp. Method of making a single-crystal turbine blade
FR3100560B1 (en) * 2019-09-06 2022-04-29 Safran Aircraft Engines Set for a turbomachine turbine
US20210332756A1 (en) * 2020-04-24 2021-10-28 General Electric Company Methods and apparatus for gas turbine frame flow path hardware cooling
US11313281B2 (en) * 2020-07-16 2022-04-26 Raytheon Technologies Corporation Gas turbine engine including seal assembly with abradable coating including magnetic particles
US11293351B2 (en) * 2020-07-16 2022-04-05 Raytheon Technologies Corporation Gas turbine engine including seal assembly with abradable coating including magnetic particles embedded in polymer
US11313280B2 (en) * 2020-07-16 2022-04-26 Raytheon Technologies Corporation Gas turbine engine including seal assembly with abradable coating and cutter
US20220099185A1 (en) * 2020-09-25 2022-03-31 Flowserve Management Company Pressure retained gasket seal with enhanced unloading resistance
US11771183B2 (en) 2021-12-16 2023-10-03 Joon Bu Park Negative Poisson's ratio materials for fasteners
US11905842B2 (en) * 2021-12-16 2024-02-20 General Electric Company Partition damper seal configurations for segmented internal cooling hardware

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605452A (en) * 1981-12-14 1986-08-12 United Technologies Corporation Single crystal articles having controlled secondary crystallographic orientation
US4668557A (en) * 1986-07-18 1987-05-26 The University Of Iowa Research Foundation Polyhedron cell structure and method of making same
GB2235200A (en) * 1989-07-14 1991-02-27 Nat Res Dev Polymeric materials

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8107724L (en) * 1981-12-22 1983-06-23 Mecman Ab DEVICE FOR A Piston Rod Loss PRESSURE CYLINDER
US5158430A (en) * 1990-09-12 1992-10-27 United Technologies Corporation Segmented stator vane seal
DE19537282C2 (en) 1995-10-06 1999-02-18 Mtu Muenchen Gmbh Device for sealing an annular space against exposure to fluid
US6199871B1 (en) 1998-09-02 2001-03-13 General Electric Company High excursion ring seal
US6447871B1 (en) 1999-09-27 2002-09-10 The Aerospace Corporation Composite materials with embedded machines
US6883807B2 (en) 2002-09-13 2005-04-26 Seimens Westinghouse Power Corporation Multidirectional turbine shim seal
GB0228748D0 (en) 2002-12-10 2003-01-15 Alstom Switzerland Ltd Sealing arrangement
US20050224144A1 (en) 2004-01-16 2005-10-13 Tresa Pollock Monocrystalline alloys with controlled partitioning
US20050198904A1 (en) 2004-03-12 2005-09-15 Browne Alan L. Active seal assemblies for movable windows
US20060082074A1 (en) 2004-10-18 2006-04-20 Pratt & Whitney Canada Corp. Circumferential feather seal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605452A (en) * 1981-12-14 1986-08-12 United Technologies Corporation Single crystal articles having controlled secondary crystallographic orientation
US4668557A (en) * 1986-07-18 1987-05-26 The University Of Iowa Research Foundation Polyhedron cell structure and method of making same
GB2235200A (en) * 1989-07-14 1991-02-27 Nat Res Dev Polymeric materials

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BAUGHMAN R H ET AL: "Negative Poisson's ratios as a common feature of cubic metals", NATURE MACMILLAN MAGAZINES, vol. 392, no. 6674, 26 March 1998 (1998-03-26), UK, pages 362 - 365, XP007908322, ISSN: 0028-0836 *
CHOI J B ET AL: "DESIGN OF A FASTENER BASED ON NEGATIVE POISSON'S RATIO FOAM", CELLULAR POLYMERS, vol. 10, no. 3, 1 January 1991 (1991-01-01), RAPRA TECHNOLOGY LTD. SHAWBURY, SHREWSBURY, GB, pages 205 - 212, XP000257390, ISSN: 0262-4893 *
K EVANS: "Auxetic polymers: a new range of materials", ENDEAVOUR, vol. 15, no. 4, 1991, pages 170 - 174, XP055001332, ISSN: 0160-9327, DOI: 10.1016/0160-9327(91)90123-S *
STOTT P J ET AL: "A GROWTH INDUSTRY", PROCEEDINGS OF THE 6TH INTERNATIONAL WOOL TEXTILE RESEARCH CONFERENCE, vol. 8, 1 October 2000 (2000-10-01), THE INSTITUTE OF MATERIALS, LONDON, GB, pages 12 - 14, XP008024964, ISSN: 0967-8638 *

Also Published As

Publication number Publication date
JP2008019860A (en) 2008-01-31
EP1878873A2 (en) 2008-01-16
JP4621711B2 (en) 2011-01-26
EP1878873B1 (en) 2016-08-31
US20110081235A1 (en) 2011-04-07
US8016549B2 (en) 2011-09-13

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